Period 1907-1939
Papers mainly from the period 1907-1939. Extensive correspondence with her niece Stella Ballantine 1917-1939, with Alexander Berkman 1904-1936, with her friend Frank G. Heiner 1934-1936 and with the American anarchist W.S. van Valkenburgh 1911-1938; correspondence with Henry G. Alsberg 1924-1936, An...